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The Art of Falling

Summary:

Agatsuma Zenitsu is an elite cupid with a perfect record until he's assigned the impossible case: Kamado Tanjiro, an artist so damaged by loss and betrayal that six cupids have already failed to reach him. Zenitsu has one job: find Tanjiro a match and earn the karma needed for his own reincarnation. But as weeks turn into months and professional distance blurs into genuine care, Zenitsu realizes he's breaking the one rule cupids must never break:
don't fall in love with your assignment.

Notes:

Hallo :3 
Taking another break from Timeless Kismet because I had another fanfic TanZen idea. It's based off this writing prompt I got in my book club, a winged agent of love loses their wings because they loved a human. NOT TO MENTION, this is also inspired by a ongoing manga called Love Bullet, I suggest you check it out it's super cute. These cupid girls who uses guns instead of bows, but I REALLY loved their cupid mechanics soooo I yoinked some of that
And thus spawned this cute story idea, actual slow burn this time, I want this to be a super cutesy thing. And I desperately want to write these boys with some more fluff after writing the hell hole that is Timeless Kismet, iykyk

Chapter 1: The Impossible Case

Chapter Text

 

The thing about being a cupid—a real cupid, none of that chubby cherub, caricature nonsense humans see them as—for as long as Zenitsu had was that he'd learned to read mortals the way a violinist reads sheet music. He sensed their patterns instinctively, plucking the hidden melody beneath every word and gesture. Beneath all the noise.

The other thing about Zenitsu, not just for being a cupid, was his ability to hear everything.

Everything.

Right now, for instance, he could pick up the nervous flutter of his client's heartbeat three floors down, sitting in a café and pretending to read while stealing glances at the barista at the counter. The anxious, jittery hum of the barista's own uncertainty, the hesitations between his breaths as he longed to speak but feared rejection. Even the city was a grand symphony: car horns in a brassy B-flat, footsteps tapping a steady beat, conversations rising and falling like wind instruments warming up. To Zenitsu, all sound was music, and every person carried a private tune.

But most importantly, he could hear their sounds as his music. The unique melodies every human carried. Her melody was hopeful but unsure, like a song lingering on its first chord. The barista's was warm, steady, an invitation waiting to be accepted.

They're perfect for each other. Soulmates, even. They just don't know it yet. That’s where he comes in.

Invisible to mortal eyes, Zenitsu perched on the rooftop opposite the café, golden eyes glowing beneath the streetlights. In his hands he held an ornate bow of burnished gold. ridiculous if anyone could see it, which they couldn’t.

Humans only perceived what fit their expectations: a man in a yellow jacket dotted with triangles, holding a magic bow and crouched on a rooftop for reasons they’d never question. Zenitsu was steady and patient, waiting like a predator for the right moment to strike.

The woman's anxiety spiked, which was a flash of courage breaking through her careful control. Her thoughts came through clearly, intense emotion opening her mind like a book: Just ask him. You've been friends for three years. Either he feels the same or he doesn't. Just ask—

"Now," Zenitsu murmured. His fingers slipped into a dimensional pocket and drew out a crackling, lightning-flecked with sparks golden arrow—his signature, the trait that made his arrows distinct from other cupid’s arrows—the arrow radiated with celestial energy. He took aim at the client, adjusting for emotional trajectory rather than physical distance, and released.

The arrow struck true, dissolving into her chest with a glowing spark before disappearing. He took a breath, readying himself as he stood and went over to where the barista was coming from delivering an order.

"Sorry to disturb you, Claire, but…can I ask you something?" His voice was steadier than before, encouragement flowing through his veins like warm honey.

Claire looked up in surprise. “Of course, Max.”

"Do you ever think about us as... more than friends?"

The woman's shock was palpable, her emotional frequency shifting to hopeful. She glanced away, bit her lip, fingers twisting together. "…I think about it constantly. I've been too afraid to say anything."

Max’s eyes widened. "Really?"

"Really."

Zenitsu fired the second arrow before the man could lose his nerve and lose the moment. It struck, sparked, dissolved, and the man reached forward to take the woman's hand.

"I've wanted to tell you for months," he said. "I just didn't want to ruin what we have."

She slowly eased into a fragile smile. "You're not ruining anything. You're making it better."

They leaned closer, and Zenitsu felt the familiar warmth of a successful match. Two compatible souls finally connecting, love blooming where it had been waiting to grow.

“Another success for the great Zenitsu!” he cheered to an empty rooftop, pumping his fist. “Three hundred forty-seven matches this year! I'm amazing! I'm incredible! I’m…” Then his voice cracked and he suddenly dissolved into joyful sobs that shook his form. “so fucking happy for them…They’re so cute…my heart can’t handle it!”

“And my heart can’t take your insufferable wails every time, my goodness…” Chuntaro chirped peevishly from his shoulder, a tiny sparrow spirit who ruffled his feathers indignantly.

“That was still a good one, though,” Chuntaro conceded as Zenitsu quickly wiped his tears away.

"They were easy. Already compatible, already half in love with each other. They just needed a push."

"Most of your cases are like that. Find compatible people, give them the push, watch them fall in love." Chuntaro hopped to Zenitsu's other shoulder. "You make it look effortless."

"That's because I'm very good at my job."

"Wow. Humble, too."

Zenitsu smiled, pulling out his phone to check the celestial app that tracked his assignments and karma accumulation. A notification appeared: +150 Karma: Successful Compatibility Match. Good. Every bit counted toward his goal.

 

He strolled through the bustling streets of Shibuya, unseen by mortals flowing past, their emotional frequencies crackling in his mind like radio static. Anxiety tasted of burnt metal. Joy blazed bright yellow in his vision, fleeting as a firefly. And the loneliness—god, there was so much loneliness—felt like fog settling over his skin, grey and suffocating. In a city this crowded, why did so many hearts feel utterly alone? He smoothed the lapel of his golden jacket against an autumn chill he couldn’t actually feel. The tiny triangular patterns along the sleeves caught the sun, along with his small white wings, revealing a faint celestial shimmer only he could see.

"You're brooding again," Chuntaro pointed out. "You always get like this after completing a match. All philosophical and melancholy."

"I'm not brooding. I'm observing. Enjoying a little walk."

"You've been 'observing' this same intersection for twenty minutes. That woman with the briefcase has walked past us three times. She definitely thinks you’re some kind of loitering freak."

Zenitsu glanced at the woman in question; mid-thirties, wedding ring tan line on her left hand, recent divorce based on the jagged sound of her heartbreak cutting through the crowd noise. Someone else's job. Or maybe his, if assigned to it.

“I love Earth for moments like this,” he said, watching a young couple walk past, hands intertwined, completely absorbed in each other. “The chaos, the noise, the way everything pulses with life. Headquarters is sterile. Perfect harmony, no discord, no texture. Here, things are messy. Wholesome. That's its true beauty."

Chuntaro pecked at his ear, unimpressed. "You're definitely brooding. All this poetic waxing. This is why Uzui-san makes fun of you."

Zenitsu pouted. "Uzui makes fun of everyone. It's his love language."

As if summoned by the mention of his name, Zenitsu's phone buzzed. The enchanted device was sleek and modern, yet etched with ancient runes along its edges that let celestial beings communicate with Earth technology.

Zenitsu swiped to answer, already wincing as he braced himself. "Hey, Tengen—"

"GOLDEN BOY!" Tengen's voice boomed through the speaker, loud enough that Zenitsu had to hold the phone away from his ear. Uzui, with his three wives and triple-digit match count, was the most dramatically successful cupid in their division who never did anything quietly. Including his match completions. "I just closed a match between a celebrity chef and a food critic! It's going to be in all the gossip magazines! Flashy, right?"

"That's... great?" Zenitsu offered weakly.

"And listen, listen, before that, I matched two rival dancers who’re now choreographing together! The most flamboyant match of the season!" Tengen paused for dramatic effect. Zenitsu can hear the man doing a bow from the other side of the phone. "What about you? Still doing coffee shop romances?"

Zenitsu's eye twitched. "They're meaningful connections, thank you very much."

“Let me guess, you cried like a baby after seeing them together again, huh?”

Zenitsu’s face flushed hot, and he hissed. “I didn’t cry like a—”

“Yeah sure, sure you didn’t,” Tengen laughed. “Hey, since we both clearly had good missions. We need drinks. You free? Let’s celebrate at the usual spot.”

Zenitsu considers this, gazing up at Shibuya’s towering skyline, birds wheeling overhead, the city alive around him. “I’ll pass for tonight.”

Tengen feigned a gag over the phone. “God, you’re such a workaholic. You've gotta live a little sometimes! Even masters of love need a little loving after sparking sweet romance.”

Zenitsu chuckled softly. Tengen always managed to draw it out of him, no matter how tightly wound Zenitsu tried to keep himself. Their strange friendship was equal parts rivalry and camaraderie, with Tengen endlessly competing for flashy match statistics while simultaneously rooting for Zenitsu’s simple, heartfelt connections.

If Zenitsu was the diligent matchmaker painstakingly tuning each string of the human heart, Tengen was the showman, plucking at them with flamboyant chords that filled stadiums.

He respected Tengen, even when he wanted to throttle him. In their division of cupids, Tengen was the only one who made the afterlife’s endless grind bearable, dragging Zenitsu to karaoke nights and izakayas, where they’d swap stories about disastrous pairings and the rare success stories that stuck. Zenitsu could vividly recall the one time Tengen had staged an impromptu wrestling match between two amorous sumo fans at a sports bar, only to end up refereeing their date himself. They’d all laughed until they cried that night, even the stoic Shinobu had to get involved to get them back into shape.

Now, Tengen was at it again, pushing Zenitsu to set his own needs above his quota, to enjoy the world while he still could. His concern was genuine, even if it came wrapped in the loudest, most annoying package the heavens had ever produced. Zenitsu marveled at how this man could be so much: so loud, so extra, and yet so utterly sincere at the core. And as much as he tried to play the straight man, he found himself grinning, energy lightening despite the crush of humanity around him.

“I’ll live a little when it’s time.”

“No wonder you’re one of the top cupids in the department. Only a nerd like you could climb that high with that determination.” Despite the mockery, pride shone in Uzui’s voice, and Zenitsu couldn’t help smiling. “Guess that means more sake for me. Alright, I'll catch ya later, Golden Boy! King of ‘Meaningful Connections’, haha!”

The line went dead with a click that echoed in Zenitsu's ear. He stared at his phone for a moment, then gazed down at the café below where his client and the barista were now laughing together, their fingers accidentally brushing as they exchanged phones to input contact information, twin blushes painting their cheeks.

"Meaningful connections," he muttered to himself. "I make meaningful connections. Who cares if they're not flashy?"

The phone buzzed again almost immediately, but this time the caller ID made Zenitsu's stomach sink.

HEADQUARTERS

Headquarters never called. Matches were assigned through the app, council meetings were on the calendar weeks ahead, and an emergency call always meant something had gone wrong: a completed match had fallen apart, a divine intervention was urgently needed, or, worst of all, a performance review.

Zenitsu's last performance review had not gone well. There had been crying (his), and begging (also his), and a very mortifying conversation about "emotional regulation in the workplace."

"H-hello?" he squeaked into the receiver. Please don’t be a performance review, please don’t be a performance review, please don’t be a…

"Agatsuma." The voice was cool, professional, terrifyingly calm. Shinobu Kocho, Director of Operations for the Matching Department. "Report to headquarters immediately. You have a new assignment."

Zenitsu stilled. "Right now? But I just finished—"

"Immediately, Agatsuma."

"Is this about the crying? Because I've been working on that, I've been doing meditation exercises, and I even bought a therapy journal!"

"This isn't about your crying. Though we will discuss that at your next review." Goddamnit. Then, a pause. "This is a high-priority case. You were specifically requested."

Zenitsu blinked, glancing around nervously. "Me? Are you sure? Not Tengen, or Mitsuri, or…"

"You. One hour. Don't be late." Click.

He glared at his phone with a pout. Why was she always so brusque? Anyway… a high-priority case…requested specifically.

"I'm going to throw up," he groaned, whole body drooping sadly. Chuntaro lightly pats one of his wings on Zenitsu’s shoulder with faux sympathy. “Hey, no need to get all dramatic. It’s just a meeting, not your funeral. Well, unless you are getting ‘fired’, then sure, it’s your funeral. It’s been great working with you.”

“You are so mean, you know that right?”

Chuntaro shakes his tiny head, his feathers ruffling. “Don’t worry so much. She just needs you for another job.”

Zenitsu’s shoulders drooped further. “I know, but what if I blow it? What if it’s someone famous…like, a celebrity? Or they pair me with Tengen and I have to listen to him talk about flamboyance for six months straight?"

Chuntaro slapped his wings at Zenitsu with more force. “Oh, please. You’ve dealt with worse! Six months with Tengen won’t kill you. Now go! If you keep sulking, Shinobu will REALLY fire you.”

"Ow! Okay, okay, I'm going!

 

Cupid headquarters was located in what humans would call "a liminal space". Not quite in their dimension, not quite out of it. The entrance was wherever a cupid needed it to be. For Zenitsu, it was the emergency exit of a parking garage that people barely used.

He pushed through the door and stepped into a corridor of pure white marble, gold filigree crawling up the walls like living ivy. Soft instrumental music played from nowhere and everywhere, something classical, probably Bach. The whole place smelled of jasmine and old books.

Then he stepped out into the main lobby, which was exactly as he remembered: sterile, pristine, and coldly beautiful. Walls of white crystal stretched impossibly high, the architecture geometric and perfect in ways that human buildings could never achieve. Soft light emanated from everywhere and nowhere, casting no shadows.

At the heart of the vast hall stood the statue. Zenitsu had seen it countless times, but it never failed to make him pause. The Goddess of Love, rendered in flawless white marble shot through with veins of rose gold, stood fifteen feet tall with her arms outstretched in eternal welcome. Her expression was serene but not cold, gentle, knowing, touched with the kind of compassion that came from understanding all of humanity's struggles and loving them anyway.

She was the reason cupids existed. The reason Zenitsu had this second chance. Humans who died unloved, he thought, studying her sculpted face. Given purpose in death that we couldn't find in life. Charged with creating for others what we never had ourselves.

It was beautiful and tragic in equal measure.

"Agatsuma-san."

Zenitsu turned to see a Messenger, one of the lesser celestials who handled administrative tasks, gesturing toward a corridor. "You are expected in Conference Room Seven."

Zenitsu simply nodded and followed, passing other angels going absorbed in their duties: a Guardian Angel consulting a Recorder over protection rosters, two Reapers discussing a recent transition, their solemn expressions suggesting a difficult case, a Muse scurrying by with a clutch of inspiration briefs, muttering about an artist’s imminent breakthrough.

The scope of operations was staggering. Hundreds of angels are working constantly to influence human lives in small but meaningful ways. Cupids were just one department among many, all serving the same ultimate purpose: helping humans find what they needed to live fully.

The conference room was at the end of the corridor, behind frosted glass doors etched with the image of two interlocking hearts. The Messenger departed with a bow, and Zenitsu pushed through and found himself in a vast circular room, the walls lined with glowing screens displaying matches in progress, compatibility percentages, success rates.

Two figures were seen in the large, ornate room.

The first was Shinobu Kocho, elegant, sharp-eyed, who presided over the room like a general and with the kind of smile that unnerve even veteran cupids. Her dark hair coiled into a precise bun, her white-and-purple robes immaculate, wings folded neatly at her back. A small compass-rose stigmata glinted on her inner wrist as she crossed her arms.

The second figure made Zenitsu's breath catch. Kagaya Ubuyashiki, CEO of the entire Cupid branch, the president and highest-ranking cupid in existence. Zenitsu had seen him maybe three times in all his years of service, and each time had been for something monumentally important.

This was bad. Zenitsu is already about to pass out from sheer nervousness.

"Director Kocho. President Ubuyashiki." He bowed formally, one hand reflexively covering the compass-rose mark on his own wrist—a nervous habit from his early days.

"Agatsuma. Right on time,” Shinobu acknowledged with a curt nod.

"I'm... five minutes early, actually," he ventured cautiously, stealing a glance at Kagaya.

"Yes. That's what 'on time' means," Shinobu deadpanned.

"Thank you for responding so quickly. Please, don't be nervous,” Kagaya's voice was gentle, warm, completely at odds with the gravity of his presence.

Zenitsu was absolutely, completely, thoroughly nervous. Shaking in his boots, even and on the verge of tears. Still, he is not a professional cupid for no reason. He softly clears his throat, clearing his nerves to muster the tenacity to get through this meeting. "How can I be of service?"

Shinobu’s tiny smile sharpened as she indicated a chair before them. "Always so polite, Agatsuma-san. I appreciate that about you. It makes difficult conversations easier."

"Difficult?" His voice cracked as he sat. Oh, fuck, is he really going to be fired? Maybe this is about his crying. Chuntaro warned him so many times. "Did I…did I do something wrong? I’ve had many successful matches an-and filed all the proper reports so—”

"You're not in trouble," Kagaya reassured softly, and Zenitsu felt his shoulders relax marginally. "On the contrary, we have a special assignment for you. One that requires your specialized talents."

"My... talents?" Zenitsu echoed warily.

"Your synesthesia,” Shinobu stated.

Zenitsu blinked. "…My what?"

Shinobu sighed, a sound Zenitsu is way too used to hearing from her. "Don't play stupid, Agatsuma. You perceive sounds as colors, emotional frequencies as musical notes. That gift explains why you have such a high match success rate despite your..." She paused delicately, brow arching lightly. "...emotional volatility."

Zenitsu flinched, automatically defensive. "I'm not emotionally volatile! I'm just sensitive!"

"That's what I said." Shinobu waved her hand, and a holographic file materialized between them, crystalline and glowing with stored information. Zenitsu squinted at it, trying to read the text, but it was all in the administrative script he'd never quite cared to master. "Tell me, Agatsuma-san. In all your years of service, how many assignments have you failed?"

"None." The answer came immediately, with perhaps a touch of pride he couldn't quite suppress. "My success rate is perfect. Every match I've made has been compatible, lasting, and genuine."

"Indeed." Shinobu tapped the holographic file, which flared to life as a tangled web of timelines and fate threads so knotted in ways that made Zenitsu wince just looking at them. "That’s why you’ve been handed the Kamado case."

"The... Kamado case?"

"Kamado Tanjiro," Kagaya said, pressing his folded hands to his lips and adopting a grave expression. "Twenty-six years old, a traditional artist living in Shinjuku, and currently the most romantically impenetrable person in our jurisdiction. We haven’t seen a case like this in a millennium."

The file displayed expanded and shifted to reveal a photo of a young man with dark red hair and burgundy eyes, handsome in a quiet way, posed in an art studio. There was something about his expression that struck Zenitsu immediately: a careful blankness, like someone who'd learned to show nothing at all. This is someone who has shaken up the jurisdiction?

"What makes him difficult?" Zenitsu asked, studying the image.

Shinobu's sharp smile faded. "Everything. In the past three years, six cupids have tried six compatible partners, using six different approaches. Every single arrow bounced off him. Not deflected. Bounced, as if there's a barrier around his heart we can't penetrate."

"That's..." Zenitsu frowned, his mind already working through possibilities. "That's not normal resistance. "That sounds like active rejection. Trauma-based defense mechanisms."

"Precisely." Kagaya's tone was approving. "His emotional barriers are the result of devastating loss combined with romantic betrayal. Five years ago, his parents and four younger siblings died in a car accident—all gone in an instant. Only he and his youngest sister survived." The holographic display showed the accident report, the fate threads severed and jagged. Zenitsu felt the information like a punch to the gut.

"That's not all," Shinobu continued evenly. "Before the accident, he was engaged to a woman named Tsuyuri Kanao, his art manager. After his family died, she exploited his grief, using his emotional turmoil to profit from his art, manipulating his vulnerability for her own career advancement. When he finally recognized what she was doing, the betrayal compounded his trauma. He ended the engagement and shut down any romantic connection since."

Zenitsu stared at the photo again. Those carefully blank eyes suddenly made devastating sense. Not inability to feel, but absolute refusal to show feeling. Self-protection taken to its extreme conclusion.

"So you need me to..." He trailed off, already knowing the answer but hoping he was wrong.

"Find his true match," Kagaya finished simply. "The person who can reach him despite the damage, despite the walls, despite everything that's made him believe love is dangerous, and guide him back to connection."

"This is our highest priority case," Shinobu added. "Which is why we're assigning our best cupid. You have a perfect record, Agatsuma-san. Impeccable instincts. If anyone can do this, it's you."

"And," Kagaya added with a smile, "Giyuu-san recommended you specifically for this assignment."

Zenitsu felt something bitter twist curled in his chest, he grumbled. "Of course he did."

Tomioka Giyuu—ancient cupid, centuries of experience, and Zenitsu's occasional mentor—had a habit of steering Zenitsu toward the most challenging cases. Not out of malice, but out of the belief that difficulty bred growth. Zenitsu found it annoying as hell.

"Giyuu-san believes you have the patience and emotional intelligence this case requires," Kagaya noted. "And we trust his judgment."

"What if I can't?" Zenitsu asked quietly. The uneasiness brewed like a plague. "What if Tanjiro's truly unmatchable? What if his trauma toward love is too deep?"

"Then we'll know," Kagaya replied, nodding toward a small idol of the Goddess behind him. "But I don't believe that. We were created to help humans who've lost their way back to stable companionship. Every person has a match, Agatsuma-san, even the broken ones. Especially the broken ones."

Shinobu's expression shifted to something more serious. "Before you accept, you should understand the rules that govern this work. I know you know them, but given the complexity of this case, I want to restate them clearly."

"I understand the rules," Zenitsu sighed.

"Humor me." Shinobu's smile had an edge now. She lightly cleared her throat, ready for her lecture. "Cupids facilitate love but cannot force human choice. We nudge, create opportunities, but free will remains inviolate. Agreed?"

"Agreed."

"Cupids can’t fall in love ourselves. Our purpose is to spark love in others, not to experience it. We died unloved, and our service is how we earn our path to a second chance at life. But while serving, we remain apart from what we create."

The words settled heavy in the air. Zenitsu had accepted this rule for decades, but hearing it spelled out so explicitly felt different.

“We must never reveal our true nature to humans," Shinobu continued. "Temporary interaction in human form is acceptable, but exposing the full scope of celestial operations is forbidden. Using our powers for personal gain carries karmic consequences as every deed brings cost or reward."

"I know all this," Zenitsu said quietly.

"I know you do. But this case will test you in ways others haven't." Kagaya's expression was knowing, almost sympathetic. "Kamado Tanjiro is deeply wounded. Helping him will demand more than just matching him with a compatible partner. It will require patience, care, and some emotional investment. You'll need to understand his pain to help him heal. That kind of closeness can blur lines. It's important you remember what you are and what you're meant to do."

"I understand." Zenitsu had guided resistant, unstable clients before. Those in mental turmoil who needed both celestial and mortal help.

"Do you?" Shinobu's gaze was penetrating. "Because succeeding on this case would bring you enough karma to reach your reincarnation threshold. You've been accumulating karma for a long time, haven't you, Agatsuma-san? Working toward that second chance to become human."

Zenitsu's hand over his wrist tightened. She’s not wrong…this is a once-in-a-lifetime opportunity for a cupid. It’s as irresistible as retirement is for humans. "I'm close," he admitted. "Very close. One major successful match would probably put me over the threshold."

"This would be a major match," Kagaya nodded. "High-difficulty cases yield proportionally higher karma rewards. If you succeed here, you could finally reincarnate. Become human again. Experience the love you've been creating for others."

The words painted a picture Zenitsu had been dreaming about for ages: a fresh birth, blank memories, life on Earth as any mortal. He'd been accumulating karma for decades. He was so close to finally having enough to rebirth, to experience life as a human again, to…

To what? He didn't actually know. The memories of his human life were long gone, wiped clean when he'd died. All he had were vague impressions: loneliness, longing, the ache of wanting something he could never have. Connection, belonging, partnership. Being a cupid had given him purpose. But sometimes, watching the couples he'd matched, seeing them experience the very love he could never have for himself, the loneliness crept back in and deepened his solitude.

"That's assuming I succeed," Zenitsu deflates again.

"That's assuming you try," Kagaya replied kindly. "Will you take the case?"

Zenitsu looked at the holographic image of Kamado Tanjiro again. At the carefully controlled expression, the walls built through trauma and grief, the wounded person beneath the label “impossible.”

"I'll do it," Zenitsu made up his mind. "He deserves better than being someone's impossible case file. He deserves genuine effort from someone who cares about the outcome, not just the karma reward."

"You're a good cupid, Agatsuma-san," Kagaya smiled warmly. "Perhaps the best we have. That's why we trust you with this."

"You'll have full access to all case files, surveillance records, previous cupid reports," Shinobu added, pulling up additional displays. "Study him. Find what the others missed."

"And if you encounter any difficulties or any complications, report them immediately," Kagaya stared seriously. "This case has shown unusual patterns. Tanjiro's fate threads bear signs of interference, damage that shouldn't occur naturally. Looks like outside involvement, so we want you to be careful."

"Interference?" Zenitsu's attention sharpened. "What kind of interference?"

“We’re not certain yet,” Kagaya said gravely. “But we’ve detected traces of signatures that troubled us—most likely from… you know who. Be prepared for complications beyond normal human resistance. Stay alert. Stay safe.”

The meeting wrapped up with the usual admin items: access codes, reporting timetables, and resource allocations.

“Oh, and Agatsuma?” Shinobu called as he passed her on the way out. “Don’t you dare cry in front of him. It’s unprofessional—and quite ugly.”

Zenitsu let out a squeak, whipping his head toward her with tears already threatening. “I-I won’t cry! I’m a damned consummate professional!”

Shinobu's smile was razor-sharp. "Of course you are. Have a good hunt. You’re dismissed."

Zenitsu stepped back into the pristine hallway with his head full of information and his chest full of conflicting feelings.

"That was intense," Chuntaro said once they were alone, then shook his head with pity. “They always shove the toughest assignments onto you, huh?”

That was true enough. Zenitsu specialized in the complex unions where regular arrows and simple compatibility tests fell flat. He spotted patterns no one else saw, heard emotional frequencies others missed, and understood how broken souls could slot together because of their damage.

But this felt different.

“They’re warning me,” he murmured, rubbing his temple. “Not just saying it’s hard but saying it’s dangerous. And reminding me of the rules because they suspect I might be tempted to break them."

Chuntaro arched an eyebrow. “Will you?”

"No. I know what I am. I know what I'm here to do." Zenitsu started walking back toward the main lobby, toward the transition point that would return him to Earth. "Find Tanjiro a match. Help him heal enough to accept love. Earn my reincarnation karma. Simple."

"And if it proves harder than you expect?" Chuntaro hums.

"Then I'll work harder. I didn't come this far to fail now."

They passed the Goddess statue again on their way out. Zenitsu paused beneath her serene gaze. I died unloved, he thought. This is my chance to earn a shot at the love I never had, by helping others discover it.

Her expression seemed to soften in the light; understanding, compassionate, perhaps a little sad. Don't let me fail. Not when I'm this close.

Then he stepped through the transition door and returned to Earth, the weight of his new assignment settling over him like a heavy cloak.

He had work to do.

 

When he was back, he pulled up the case file on his phone, reviewing Kamado Tanjiro's information more carefully. Twenty-six. Artist. Lives alone in a Shinjuku studio. Visits his sister Nezuko once a week. Turned down commission requests more often than he accepted them. Has a small but devoted following for his emotionally resonant paintings. No social media presence. No dating profiles. No friends beyond professional acquaintances. He was like a isolated hermit.

"Where do we even start?" Chuntaro asked.

Zenitsu thought about that. Of the six failed cupids, six bounced arrows, three years of rejection. Conventional approaches clearly wouldn’t work on someone who’d built fortress walls designed to keep out anyone trying to reach his heart. Which meant Zenitsu needed a different strategy entirely.

"We start by watching," he said finally, slipping the phone into his pocket and unfurling his cupid wings to fly. "We learn everything about him. His routines, his preferences, his vulnerabilities. We find the crack in his armor."

"And then?" Chuntaro flies right beside him.

"Then..." Zenitsu pulled up Tanjiro's addresses, his artist studio location, and his sister's bakery. "Then we get creative."

 


 

The art supply store was called Himejima Art Supply, tucked into a quiet street in Shinjuku, and according to the surveillance logs, Kamado Tanjiro visited every Thursday at 2 PM like clockwork. Zenitsu had spent the past week studying him from his cupid form. Watching Tanjiro paint in his studio, observing his meticulous, methodical lifestyle, listening to the frequencies of his suppressed emotions. What he'd found was troubling.

Tanjiro's emotional sound was almost entirely muted. Not silent; that would indicate complete emotional death. But dampened, controlled, like someone had wrapped his heart in thick cotton batting. Every so often a flicker of feeling came through—fondness when he spoke to Nezuko, irritation at pushy art buyers, satisfaction when a painting came together—but nothing deep. Nothing vulnerable.

And the thought-reading ability Zenitsu possessed as an elite cupid? Completely worthless. He couldn't hear a single thought from Tanjiro, no matter what emotion flickered across his face. It was unprecedented. Zenitsu could hear the desperate thoughts of a heartbroken woman two blocks away, but Tanjiro remained completely, frustratingly silent. The inability to read him should have been merely frustrating. Instead, it made Zenitsu curious.

He realized why six cupids before him had failed: they didn’t understand what they were up against. They met resistance and tried to force their way in. But you can’t smash through a fortress built so deliberately. You have to be invited inside. So whatever partners they shot with their arrows didn’t get the real party guest invitation.

"This is a terrible idea," Chuntaro fussed as Zenitsu adjusted his appearance in the reflection of a shop window. "You're supposed to observe him afar for now, not dive in headfirst with interactions this quickly.”

"Observation isn’t enough,” Zenitsu countered. “Six cupids tried distance. I need close proximity from the start. Get involved in his healing process.”

Chuntaro fluttered in obvious discomfort, but was also very curious. "So you're going to…what, exactly?"

"Get a job." Zenitsu grinned, smoothing his yellow jacket, which is now a full, human-visible garment. He'd descended into mortal form, taking on flesh and blood, exposing himself to mortal senses. It was draining to maintain, but necessary. "Himejima-san needs a new employee. I happen to be available."

“That’s manipulation.”

Zenitsu raised a single finger. “Strategic manipulation. And let’s face it, our entire job is manipulation.”

Chuntaro covered his beak with a wing. “You know nothing about art supplies.”

“I’ll learn. I’m studious, you know.”

The sparrow made a doubtful chirp. “‘Studious’, yes. Like that one time you had to descend to help a historian bookworm, and you couldn’t get through a single page of his books without falling asleep.”

Zenitsu rolls his eyes. “It’s not my fault history is boring!”

The bell above the shop door chimed as Zenitsu entered. The store was exactly the kind of peaceful, well-organized space that would appeal to someone like Tanjiro, with its soft lighting, neatly arranged shelves, the faint smell of linseed oil and paper. An elderly man stood behind the counter, massive and gentle-looking. His eyes were shut, and he wore enormous pearl-like prayer beads around his neck.

Gyomei Himejima, the owner. Former monk, turned art-supply guru—and, according to celestial files, someone with just enough spiritual sensitivity to make interactions with disguised angels slightly complicated.

"Welcome," Gyomei said, his voice deep and calm. Then he paused, and tilted his head. "Ah. You're not human."

Zenitsu froze, genuinely caught off guard. "I—what? Of course I am. Very human—” He placed a hand on his chest and splayed open his palm. “—See? Extremely human, actually."

"I can hear your heartbeat. It sounds heavenly. Human hearts don't sound like that." Gyomei leans in slightly, the large beads around his neck tinkled. “You have business here, little angel?”

There was a long, awkward silence. There are humans like Gyomei out there, who have sensitive supernatural senses in a similar sense to celestial beings. It’s extremely rare, and most of these people are religious people, or fortune tellers, or something adjacent. Zenitsu can’t tell if this will make his job easier or harder.

"Are you going to tell anyone?" Zenitsu asked finally. No point in lying to someone who could clearly sense his real self.

"Why would I? The world is full of strange things. You don't feel malicious." Gyomei smiled sweetly. "Do you need something?"

"A job. I promise I'm a fast learner, I'll work hard, I just…" Zenitsu caught himself, choosing honesty over deception. "I need to be here on Thursday afternoons. It's important."

The man’s brow raised marginally. "For the young man who always buys burnt sienna and cadmium red?"

Zenitsu blinked. "You know about Tanjiro?"

"Kamado-san has been coming here for three years. Always polite, always quiet, always purchases those same tubes of paint colors." Gyomei's expression softened with something like sadness. "Always alone."

"That's…yes. Him."

"Are you here to help him or hurt him?"

Zenitsu holds his palms up in peace. "Help. I swear I'm here to help."

Gyomei regarded him for a long moment. Or at least gave the impression of doing so, since the man's eyes were closed. Zenitsu had the awkward feeling of being read far more thoroughly than his thought-hearing ability had ever managed with anyone else.

"Thursdays, two to five PM," Gyomei said at last. "Minimum wage, no benefits. And if you hurt that boy, angel or not, I'll find a way to make you regret it."

“Deal,” Zenitsu agreed instantly, relief flooding him. He was not expecting to find someone this protective of his client already.

"Learn the inventory. Know the products. Kamado-san will notice if you’re clueless." Gyomei’s stern expression softened. "He's been through enough. Whatever you're planning, be gentle with him."

"I will. I promise."

 

So over the next week, Zenitsu threw himself into preparation. He studied art supplies obsessively, the core details like paints, brushes, canvas types, mediums, and solvents. Not just reading about the materials but actually using them, buying cheap canvases and paints, experimenting with every paint, learned through doing. He needed to be credible, knowledgeable, and useful. Needed to give Tanjiro a reason to engage beyond basic customer service.

His brain felt stuffed with terminology: gesso, impasto, glazing techniques, color theory. Chuntaro had taken to quizzing him at random moments, which was equal parts helpful and intensely maddening.

"What's the difference between cold press and hot press watercolor paper?" the sparrow questioned as Zenitsu tied his apron in the little temporary apartment he was staying in.

"Cold press has texture, hot press is smooth. Cold press for traditional watercolor, hot press for detailed work."

"Burnt sienna versus raw sienna?"

"Burnt is darker, warmer. Raw is lighter, more yellow-toned."

"Good. Don't embarrass yourself."

"Your confidence in me is overwhelming," Zenitsu muttered snidely.

 

At last Thursday arrived. Zenitsu was restocking shelves when the bell chimed at 2:04 PM.

Kamado Tanjiro entered like a carefully controlled storm. quiet, contained, but with an energy that suggested vast depths held under tight control. He moved affordably, taking up minimal space but accomplishing exactly what he needed. He was more striking in person than in photographs: dark red hair slightly tousled, burgundy eyes that scanned the store with practiced efficiency, dressed simply in dark jeans and a forest-green henley that brought out the warm tones in his skin. His rectangular earrings swung subtly with his sharp movements, and a scar at his hairline made Zenitsu stare a beat longer than usual.

He was beautifully cool in an understated way that Zenitsu found immediately, irritatingly distracting.

Tanjiro headed straight for the paint section. He didn't browse, didn't hesitate, just collected burnt sienna, cadmium red, and titanium white with the precision who'd made this exact purchase countless times before.

Zenitsu watched him from behind the counter, listening for emotional frequencies, trying to read anything from his demeanor. Muted. Controlled. Careful. And still, impossibly, no thoughts breaking through. Even watching him this closely, with Tanjiro clearly focused and alert, Zenitsu couldn't hear a single internal word. How was he doing that?

Tanjiro approached the counter and laid down his supplies with precise care, avoiding eye contact and keeping his gaze politely fixed on the products. Zenitsu began scanning the items in thick silence, hyperaware of his own heartbeat, wondering if Tanjiro could somehow sense what he was like with Gyomei.

"You're a regular burnt sienna buyer,” he said, attempting a friendly opening. A casual observation to start a conversation.

Tanjiro's expression didn't change, but something flickered in his eyes. Wariness, maybe. "…The owner mentioned me?" When he finally spoke, his voice was warm, pleasant even, and as annoyingly attractive as the rest of him.

"Just that you prefer certain colors. I'm new, started this week. Still learning everyone's preferences."

"Ah." Tanjiro's tone managed to convey both acknowledgment and dismissal simultaneously. "Well. I prefer burnt sienna. Now you know."

There was a finality to his words that clearly indicated the conversation was over. But Zenitsu, who had spent decades reading humans—and even longer as a professional busybody—couldn't help himself.

"Do you use it for underpainting, or do you apply it directly?"

Tanjiro glanced up, meeting Zenitsu's eyes for the first time. His gaze was sharp, scrutinizing. The look of someone trying to determine if this was genuine interest or another angle. For the moment of more silence, Zenitsu thought he would completely ignore him, but then Tanjiro spoke.

"Both," he replied after a long beat. "Depends on the piece."

“Right, that makes sense,” Zenitsu said, keeping his tone casual, conversational. "Burnt sienna is versatile. Warm enough for skin tones, neutral enough for backgrounds." He could feel Tanjiro's suspicion like static in the air. "Are you working on anything specific, or just restocking?"

"Restocking." The single-word reply was polite but final. The conversational equivalent of a door closing.

Zenitsu knew he should let it go. Just finish the sale and send Tanjiro on his way, try again another time. But he couldn’t resist and heard himself say: "Your paintings are incredible, by the way."

Tanjiro went completely still.

"I've seen your work online," Zenitsu continued, ignoring Chuntaro's frantic warning chirps from the edge of the counter. “That piece with the shadow figure reaching toward light? That stayed with me for days."

"Mhm." Tanjiro's voice had lost all warmth. Not even a ‘thank you’. "How much?" The question cut off any further exchange.

Zenitsu rang up the last item, rattled off the total, and processed the payment in robotic fashion. Tanjiro took his supplies with a curt nod and walked out. The bell chimed behind him, and the shop fell silent. Zenitsu was left alone behind the counter, staring at the empty doorway, certain he’d just failed a test he didn't understand.

"Wow, nice going, scaring off your client,” Chuntaro snarked, hopping onto the counter.

Zenitsu frowned. "He's more guarded than the dossier made him out to be."

"He's suspicious. You came on too strong."

"I was just being friendly!" Zenitsu protested, throwing his arms out in front of him.

"You complimented him the second you talked about art. He probably gets that constantly from people trying to get close to him. You're just another stranger with an agenda."

“That wasn’t my intentionnn thoughh…” Zenitsu softly wailed and slumped against the counter, replaying the interaction. Tanjiro's wariness, his careful distance, the way he'd shut down the moment Zenitsu showed recognition of who he was. Granted, that’s pretty normal if the person has any type of fame. Recognition can instantly be concluded as stalking rather than a fan. But Tanjiro seems like he considers any fan a stalker.

Six cupids had tried and failed. Zenitsu was starting to understand even more. Kamado Tanjiro was impervious not only to love but to any kind of connection. He'd built his walls so carefully, so thoroughly, that even friendly conversation felt like an attack.

"This really is going to be harder than I thought," Zenitsu said quietly.

"You could give up,” Chuntaro proposed. “File a report. Let someone else try, or pair up with another cupid to increase the odds.”

Zenitsu considered it. His karma balance, the near-certain shot at reincarnation, the logical reasons to walk away from an impossible case. Then he thought about Tanjiro's paintings, the ones he'd actually studied during his research. Images full of suppressed longing, of beauty wrapped in sorrow, of light struggling against shadow. Art created by someone who felt everything but showed nothing.

Someone who'd learned that loving people meant losing them.

"No," Zenitsu said firmly. "I'm not giving up. I even promised President Ubuyashiki I’d see this through. And I’m Zenitsu Agatsuma—Cupid extraordinaire. I don’t quit.” An elite with not a single fail to his name, he wasn’t going to end that streak now.

Chuntaro tilted his head. “Then what’s your plan?”

Through the shop window, Zenitsu watched Tanjiro disappear into the crowded street, supplies held close, shoulders squared in that precise line of undisturbed isolation.

"I need to be different," Zenitsu said slowly, thoughtfully, his cheek resting in his palm. "Not friendly, not interested, not trying to get close. I have to be..."

“Be what?” Chuntaro prompted.

A slow grin spread across Zenitsu's face. "Annoying."

Chuntaro narrowed his small, beady eyes. "...explain."

"Think about it, he expects this in every interaction. He's got shields up against anyone trying to get close. Flattery, friendliness, all that. But what if I'm just..." Zenitsu's hands animated his thoughts, "unavoidably there? Like a pebble in his shoe? Not pushing, not pursuing, just... there. Also show more of my genuine interest in arts until he gets curious instead of suspicious. Maybe enough to trust me and listen to my advice with other people."

Chuntaro hopped backward, head cocked dubiously. "That's your master strategy?"

"Got anything better?" Zenitsu scrolled through his phone, thumb pausing over Tanjiro's schedule. The artist had a studio four blocks from here, Sunday bakery visits, occasional outdoor painting sessions at Yoyogi Park when the weather was nice. So many opportunities for "coincidental" meetings.

"We're in for the long haul, aren't we?" Chuntaro asked slowly.

"Probably."

The sparrow sighed, a very human sound from a very non-human creature. "Now I don’t doubt your skills, but do you honestly believe you'll break through?"

Zenitsu's gaze drifted skyward, past the ceiling, toward whatever cosmic ledger tracked his karmic debt, his golden path back to humanity.

"I have to try," he said quietly. "Everyone deserves to be loved. Especially those who've convinced themselves they’ve killed the possibility completely."